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The magnetic field in a solenoid is B = (µ0NI) / d. A circular wire of radius 10 cm is concentric with a solenoid of radius 7 cm and length d = 1 meter, containing 11000 turns. The current increases at a rate of 50 A/s.
What is the emf in the wire?
V
What is the non-Coulomb electric field in the wire?
V/m
Imagine that we connect a 10-mH coil to a battery through a resistor, and it settles down to conducting 1.0A. How much energy is now stored in its magnetic field
Assume that positive -axis is directed toward the direction of motion of cart 2.
A uranium and iron atom reside a distance R = 51.10 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized, What is the magnitude of the force on the electron from the uranium ion
Bats are capable of navigating using the earth's field-a plus for an animal that may fly great distances from its roost at night. What is the proper orientation of the coil
Presume a spherical planet P has a uniform density of 4.72 x 10^3 kg/m^3 and a radius R = 3604km. For a parcel that weighs 64N on the surface of the spherical Earth.
A 500 nm wavelength light illuminates a soap film with an index of refraction 1.22 to make it look bright. what is the minimum thickness of the film
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 21.0 days on average to complete one nearly circular revolution around the unnamed planet.
The experiment done in lab is repeated, using a ball that has unknown mass m. You plot your data in the form of f?2 versus M/L, calculate the mass m of the ball
Speedboat A negotiates a curve whose radius is 150m. Speedboat B negotiates the curve whose radius is 190m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A spherical mirror has a focal length of -14 cm. Where is the mirror's image for an object which is at a distance of 30 cm? Draw the ray diagram for this set up
A plate of glass with parallel faces having a refractive index of 1.57 is resting on the surface of water in tank. A ray of light coming from above in air makes an angle of incidence 34.5 degrees with normal to the top surface of the glass.
A submarine is 304 m horizontally out from the shore and 126 m beneath the surface of the water. A laser beam is sent from the sub so that it strikes the surface of the water at a point 232 m from the shore. If beam just strikes the top of a building..
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